diff --git a/src/mame/drivers/capr1.cpp b/src/mame/drivers/capr1.cpp
index e39fb8f6e19..af1d39d8b35 100644
--- a/src/mame/drivers/capr1.cpp
+++ b/src/mame/drivers/capr1.cpp
@@ -20,7 +20,10 @@ TODO:
   * unknown reads and writes
   * should have a rombank somewhere
   * what causes the nmi?
-  * where's adpcm hooked up?
+  * what kind of device lives at C008-C009 and C00C-C00D?
+    (each is initialized with 80 to control port, then operated by writing
+    0A, 08, 00 to control port and transferring five bytes from memory to
+    the data port, finishing by writing 01 to the control port)
   * 2 players, 1 7seg led on each cpanel, 3 7seg leds on cranes
 - get more dumps, find out technical differences between games and document them
 - the rest can come later
@@ -63,7 +66,7 @@ WRITE8_MEMBER(capr1_state::output_w)
 static ADDRESS_MAP_START( cspin2_map, AS_PROGRAM, 8, capr1_state )
 	AM_RANGE(0x0000, 0x7fff) AM_ROM
 	AM_RANGE(0x8000, 0x9fff) AM_RAM
-	AM_RANGE(0xa000, 0xa01f) AM_DEVREADWRITE("te7750", te7750_device, read, write)
+	AM_RANGE(0xa000, 0xa00f) AM_DEVREADWRITE("te7750", te7750_device, read, write)
 	AM_RANGE(0xc000, 0xc001) AM_DEVREADWRITE("ym", ym2203_device, read, write)
 	AM_RANGE(0xc004, 0xc004) AM_DEVREADWRITE("oki", okim6295_device, read, write)
 //  AM_RANGE(0xc008, 0xc009) AM_WRITENOP